Electric rice cooker



FIG. 1 is a front perspective view of the electric rice cooker showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines are included for the purpose of illustration and forms no part of the claimed design. 

CLAIM The ornamental design for an electric rice cooker, as shown and described. 